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The first is to provide a complex method for compressing logs and database files as follows: 1. Empty log DUMP TRANSACTION Library name with NO_LOG 2. Truncate the transaction log: BACKUP LOG database name with NO_LOG 3. Shrink the database file (if not compressed, the database file will not be reduced Enterprise Manager--right--the database you want to compress--all tasks--shrink the database--Shrink the file --Select Log file--in the shrinkage metho
Tags: SQL Server delete logFirst of all, this SQL Server mechanism is actually very rigorous, his intention is to---if you do not log backup, you do not delete the log, and then there are scripts for you to reclaim the log space, it is very safe and convenient and practical.Seems to be quite reasonable, but encountered
I. Methods for deleting Database Log Files When you run an SQL statement, the database reports that the transaction log is full and then reports an error. How to delete the database logs and try to delete the logs for half a day? Now we provide two ways to delete log files. I hope this will help you! Method 1: manual operation1. Choose "Database"> "right-click" p
large, this restore to wait a long time, go out to suck a few fresh air, the merit will be gaocheng.3. After the database restore is successful, this stateDisplay (Restoring ... ), restore the transaction log to the SHUA2, which is the database right-click Task.If you fill in, first fill in the beginning of the backup log C:\shua_log.bak, and then tick [restore], the most important thing is to choose a point in time, but this point of time can not select milliseconds, so I chose 29 seconds, Thi
I used to think that the full backup of SQL Server only backs up the data in the database and does not contain logs. In fact, this is an error. Using RESTOREHEADERONLY can help us verify (msdb. dbo. backupset also contains the relevant information ). Restore headeronly returns the result set that contains all the backup headers of all backup sets on a specific ba
))) + ', ' + Convert(VARCHAR(8),convert(INT,convert(VARBINARY, SUBSTRING(@pageID $, 6, 8), 2))) ---view page contentSET @sqlCmd = ' DBCC PAGE (' Crack_me ', '+ @pageID + ', 3) with Tableresults ' EXECUTE(@sqlCmd) In addition, this function can only take effect on the currently active log, and if it cannot be read after log backup, we need to use another function (fn_dump_dblog http://blog.csdn.net/smithliu328/article/ details/7817540) is read from the backup. It is only possible to see
." Layout.exceptionlayout " /> parameter> Appender> Root> Set this to "ERROR" before release - highest:off->fatal->rror->warn->info->debug->all:lowest - Levelvalue= "All" /> Appender-refref= "Adonetappender" /> - - Root> log4net>configuration of the LOG4 node4, add the following two lines of code in AssemblyInfo.csUsing Log4net;[Assembly:log4net. Config.xmlconfiguratorattribute (Watch = True)]5. The code call test is as follows:private static reado
The SQL error log records various problems encountered during database operation and some important information. As a troubleshooting requirement, we usually do not take the initiative to clean up these log files. Only when the server is restarted, SQL automatically deletes the oldest log file and generates a new log file.By viewing the database log files on the
Brief introduction The role of the log is to ensure persistence and data consistency, through the log can achieve data undo and redo, so through the log, SQL Server can not only achieve disaster recovery, but also through the redo of the log to achieve high availability. This article focuses on the role of logging in several high-availability scenarios provided in SQL
Tags: LTE pre case file scheme applies to a class number oneRecently do a data acquisition project using the SQLSSERVER2014 databaseDid not expect data to collect two or three days, C disk space has left 8MHurriedly looked at the SQLSEREVR database folderLocated in C:\Program Files\Microsoft SQL Server\mssql12. Mssqlserver\mssql\datafound that the database file is not big, only dozens of m, but the log file
How to manually clear the log First, now we describe in detail how to use Enterprise Manager to clean up the log of SQL 2000: 1, open Enterprise Manager, right click to deal with the database-"attributes-" option-"Failure to restore, select" Simple "-" OK. As shown in figure: 2, right click on the database to be processed--all tasks--"Shrinking the database-" Nothing moves, the default first is 0%, the other two unchecked, point OK--"If your previo
Method One In general, the contraction of the SQL database does not greatly reduce the size of the database, its primary role is to shrink the log size, you should do this periodically to avoid the database log too large 1, set the database mode to Simple mode: Open SQL Enterprise Manager, in the console root in turn, click the Microsoft SQL
Two methods are available when the log file is full and the SQL database cannot write to the file:One way: Empty the log.1. Open Query Analyzer, enter a commandDUMP TRANSACTION database name with NO_LOG2. Open Enterprise Manager again--right click on the database you want to compress--all tasks--shrink the database--Shrink the file--Select the log file--in the contraction mode to choose to shrink to XXM, here will give an allowable contraction to the
----------full backup and restore------------Full backup database--Backup database studb to disk= ' E:\stu.bak 'Backup log studb to disk= ' E:\stu_log.bak 'Use masterGo--Restore Library--Restore database Studb from disk= ' E:\stu.bak ' with Replace,norecoveryRestore log studb from disk= ' E:\stu_log.bak ' with replace---------Differential Backup----------Concept: A full backup of a previous database and now a differential backup to ensure data integrityBackup database studb to disk= ' E:\stu.bak
database user name and password, Others do not understand the next step crazy. through the Log Explorer tool, I can see that the time that was deleted is: 07-10 09:46:29.880, then I'll restore the data to 07-10 09:46:29.879 . here's how to get back to work. 1, back up the database log, with T-SQL statements BACKUP LOG Shua to disk= ' C:\shua_log.bak ' with FORMAT 2, because my database has automatic full backup every day, find a full backup of t
When the database log is full, the system prompts: the database '**' log is full. Back up the transaction logs of the database to release some log space. Solution: 1. Clear logsDump transaction database name with no_log 2. Compress database files (if not compressed, the database files and log files will not be reduced)A. Right-click the database you want to compress-> task-> shrink-> FileB. select "log" in "file type"> "shrink operation" and select
Tags: impact Management tab action PST statement amp shrink log httpBecause SQL2008 is optimized for file and log management, the following statements can be run in SQL2005 but have been canceled in SQL2008:(SQL2005)Backuplog Dnname with No_logGoDumptransaction Dnname with No_log GoUse DnnameDBCC Shrinkfile (2)Go--------------------------------------------------------------(SQL2008):Clearing the log in SQL2008 must be done in simple mode, and then back to full mode when the purge is complete.Sce
----------Full Backup------------Full backup--Backup Database StudbTo disk= ' E:\stu.bak '--Log backup--Backup LOG StudbTo disk= ' E:\stu_log.bak 'Use masterGo--Restore the full backup first--Restore Database StudbFrom disk= ' E:\stu.bak 'With Replace,norecovery--Re-restore log backup--Restore Log StudbFrom disk= ' E:\stu_log.bak 'With replace---------Differential Backup------------Full backup--Backup Database StudbTo disk= ' E:\stu.bak '--Differential backup--Backup Database StudbTo disk= ' E:\
As we know, the SQL Server transaction log is used primarily to record changes made to the database by all transactions, and if the system fails, it becomes the only source of the latest data. Log operations often have the following applications: One, the transaction log file LDF lost When we do not delete or LDF file loss, the database only left MDF files, at this time directly through the additional MDF
. This means that transactions can be committed without waiting for the backup storage to write logs to the disk. This asynchronous operation allows the subject server to run with the minimum transaction latency, but may lose some data. The specific mode is determined by the database administrator based on the company's attitude towards data loss and workload. It can be seen that the data synchronization
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